UPD78F9136GS datasheet(13/46 Pages) RENESAS

13 / 46 page

Preliminary Product Information

PD78F9136

4.2

Non-Port Pins

Pin name

I/O

Function

When reset

Also used as

INTP0

Input

P23/CPT20/SS20

INTP1

P24/TO80/TO20

INTP2

P25/TI80

SI20

Input

Serial data input to serial interface

Input

P22/RxD20

SO20

Output

Serial data output from serial interface

Input

P21/TxD20

SCK20

I/O

Serial clock input/output for serial interface

Input

P20/ASCK20

ASCK20

Input

Serial clock input to asynchronous serial interface

Input

P20/SCK20

SS20

Input

Chip select input to serial interface

Input

P23/CPT20/INTP0

RxD20

Input

Serial data input to asynchronous serial interface

Input

P22/SI20

TxD20

Output

Serial data output from asynchronous serial interface

Input

P21/SO20

TI80

Input

External count clock input to 8-bit timer (TM80)

Input

P25/INTP2

TO80

Output

8-bit timer (TM80) output

Input

P24/INTP1/TO20

TO20

Output

16-bit timer (TM20) output

Input

P24/INTP1/TO80

CPT20

Input

Capture edge input

Input

P23/INTP0/SS20

ANI0-ANI3

Input

A/D converter analog input

Input

P60-P63

AVSS

A/D converter ground potential

AVDD

A/D converter analog power supply

CL1

Input

CL2

RESET

Input

System reset input

Input

VDD

Positive supply voltage

VSS

Ground potential

VPP

Pin for setting flash memory programming mode.

Apply a high voltage to write or verify a program.

In normal operation mode, connect the VPP pin directly to the VSS

pin.

External interrupt input for which effective edges

(rising and/or falling edges) can be specified

Connected to resistor (R) or capacitor (C) for main system clock

oscillation

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